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MPL 20x3x2 / N38 - lamellar magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, mazowieckie, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500 PLN

lamellar magnet

Catalog no 020130

GTIN/EAN: 5906301811367

5.00

Load capacity 2.33 kg / 22.90 N Magnetic Induction 370.68 mT / 3707 Gs

length: 20 mm [±0,1 mm]
Width: 3 mm [±0,1 mm]
Height: 2 mm [±0,1 mm]
Weight: 0.9 g
Magnetization Direction: ↑ axial
Coating: [NiCuNi] Nickel

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Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

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Technical details - MPL 20x3x2 / N38 - lamellar magnet

Specification / characteristics - MPL 20x3x2 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020130
GTIN/EAN	5906301811367
Production/Distribution	Dhit sp. z o.o. ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin	Poland / China / Germany
Customs code	85059029
length	20 mm [±0,1 mm]
Width	3 mm [±0,1 mm]
Height	2 mm [±0,1 mm]
Weight	0.9 g
Magnetization Direction	↑ axial
Load capacity ~ ?	2.33 kg / 22.90 N
Magnetic Induction ~ ?	370.68 mT / 3707 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 20x3x2 / N38 - lamellar magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	BH max KJ/m
max. temperature ?	≤ 80	°C

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

properties	values	units
Vickers hardness	≥550	Hv
Density	≥7.4	g/cm³
Curie Temperature TC	312 - 380	°C
Curie Temperature TF	593 - 716	°F
Specific resistance	150	μΩ⋅cm
Bending strength	250	MPa
Compressive strength	1000~1100	MPa
Thermal expansion parallel (∥) to orientation (M)	(3-4) x 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Technical modeling of the magnet - report

The following data are the outcome of a engineering simulation. Values are based on models for the class Nd₂Fe₁₄B. Actual performance might slightly differ from theoretical values. Use these calculations as a reference point when designing systems.

Table 1: Static force (force vs distance) - interaction chart
MPL 20x3x2 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3700 Gs 370.0 mT	2.33 kg / 5.14 lbs 2330.0 g / 22.9 N	warning
1 mm	2103 Gs 210.3 mT	0.75 kg / 1.66 lbs 752.3 g / 7.4 N	low risk
2 mm	1172 Gs 117.2 mT	0.23 kg / 0.52 lbs 233.7 g / 2.3 N	low risk
3 mm	721 Gs 72.1 mT	0.09 kg / 0.20 lbs 88.5 g / 0.9 N	low risk
5 mm	345 Gs 34.5 mT	0.02 kg / 0.04 lbs 20.3 g / 0.2 N	low risk
10 mm	101 Gs 10.1 mT	0.00 kg / 0.00 lbs 1.7 g / 0.0 N	low risk
15 mm	42 Gs 4.2 mT	0.00 kg / 0.00 lbs 0.3 g / 0.0 N	low risk
20 mm	21 Gs 2.1 mT	0.00 kg / 0.00 lbs 0.1 g / 0.0 N	low risk
30 mm	7 Gs 0.7 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	low risk
50 mm	2 Gs 0.2 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	low risk

Pulling power drops significantly with every mm of distance. Note that even a microscopic distance (e.g., dirt, varnish, veneer) strongly weakens the grip. Magnetic products operate optimally during direct contact; air break weakens the power. See how quickly the load capacity fall, when the product does not adhere directly to the metal substrate. When calculating the mounting, avoid unnecessary gaps.

Table 2: Slippage hold (wall)
MPL 20x3x2 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.47 kg / 1.03 lbs 466.0 g / 4.6 N
1 mm	Stal (~0.2)	0.15 kg / 0.33 lbs 150.0 g / 1.5 N
2 mm	Stal (~0.2)	0.05 kg / 0.10 lbs 46.0 g / 0.5 N
3 mm	Stal (~0.2)	0.02 kg / 0.04 lbs 18.0 g / 0.2 N
5 mm	Stal (~0.2)	0.00 kg / 0.01 lbs 4.0 g / 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

The following data defines the estimated force sufficient to cause the slippage of the magnet down against a vertical steel plate (considering standard friction coefficient). This parameter is relative to the distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MPL 20x3x2 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.70 kg / 1.54 lbs 699.0 g / 6.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.47 kg / 1.03 lbs 466.0 g / 4.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.23 kg / 0.51 lbs 233.0 g / 2.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	1.17 kg / 2.57 lbs 1165.0 g / 11.4 N

When mounting a element on a vertical wall (e.g., a fridge), it will maintain just about 1/5 of its maximum pull force. Gravity as well as a low friction coefficient cause that holders slide down easier than they pull off. Want to create a vertical fastening? Remember that the shear force is significantly lower than the maximum static pull force. On a painted metal, the holder will slip down under a noticeably lighter weight. Using a rubber layer can effectively improve the result.

Table 4: Material efficiency (saturation) - sheet metal selection
MPL 20x3x2 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.23 kg / 0.51 lbs 233.0 g / 2.3 N
1 mm	25%	0.58 kg / 1.28 lbs 582.5 g / 5.7 N
2 mm	50%	1.17 kg / 2.57 lbs 1165.0 g / 11.4 N
3 mm	75%	1.75 kg / 3.85 lbs 1747.5 g / 17.1 N
5 mm	100%	2.33 kg / 5.14 lbs 2330.0 g / 22.9 N
10 mm	100%	2.33 kg / 5.14 lbs 2330.0 g / 22.9 N
11 mm	100%	2.33 kg / 5.14 lbs 2330.0 g / 22.9 N
12 mm	100%	2.33 kg / 5.14 lbs 2330.0 g / 22.9 N

A thin metal plate cannot absorb the entire magnetic field, which weakens actual performance of the holder. If you attach a powerful product to a weak sheet, the flux will penetrate right through and the holding will be smaller. To squeeze the maximum of this magnet's potential, you require a sufficiently solid element of metal. The saturation effect means that on thin elements (e.g., thin profiles), the product works worse. We advise picking the steel cross-section according to the table below.

Table 5: Thermal resistance (stability) - power drop
MPL 20x3x2 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	2.33 kg / 5.14 lbs 2330.0 g / 22.9 N	OK
40 °C	-2.2%	2.28 kg / 5.02 lbs 2278.7 g / 22.4 N	OK
60 °C	-4.4%	2.23 kg / 4.91 lbs 2227.5 g / 21.9 N
80 °C	-6.6%	2.18 kg / 4.80 lbs 2176.2 g / 21.3 N
100 °C	-28.8%	1.66 kg / 3.66 lbs 1659.0 g / 16.3 N

Ordinary NdFeB products irreversibly lose power past the thermal threshold. Avoid high temperatures – heat can permanently damage this product. As the temperature rises, the neodymium's power momentarily lowers. Do not use this magnet close to ovens higher than its safe range. Too high temperature will lead to irreversible degradation of magnetism.

*Engineering note: Thermal stability is determined by both grade, but also on the magnet's shape. Thin magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress compared to rod magnets. The danger warning in the table indicates permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MPL 20x3x2 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	5.06 kg / 11.17 lbs 4 866 Gs	0.76 kg / 1.67 lbs 760 g / 7.5 N	N/A
1 mm	3.01 kg / 6.64 lbs 5 705 Gs	0.45 kg / 1.00 lbs 452 g / 4.4 N	2.71 kg / 5.97 lbs ~0 Gs
2 mm	1.64 kg / 3.61 lbs 4 205 Gs	0.25 kg / 0.54 lbs 245 g / 2.4 N	1.47 kg / 3.24 lbs ~0 Gs
3 mm	0.89 kg / 1.97 lbs 3 106 Gs	0.13 kg / 0.29 lbs 134 g / 1.3 N	0.80 kg / 1.77 lbs ~0 Gs
5 mm	0.31 kg / 0.67 lbs 1 816 Gs	0.05 kg / 0.10 lbs 46 g / 0.4 N	0.27 kg / 0.61 lbs ~0 Gs
10 mm	0.04 kg / 0.10 lbs 690 Gs	0.01 kg / 0.01 lbs 7 g / 0.1 N	0.04 kg / 0.09 lbs ~0 Gs
20 mm	0.00 kg / 0.01 lbs 202 Gs	0.00 kg / 0.00 lbs 1 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
50 mm	0.00 kg / 0.00 lbs 24 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
60 mm	0.00 kg / 0.00 lbs 14 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
70 mm	0.00 kg / 0.00 lbs 9 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
80 mm	0.00 kg / 0.00 lbs 6 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
90 mm	0.00 kg / 0.00 lbs 5 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
100 mm	0.00 kg / 0.00 lbs 3 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnets interact from a much further distance than a magnet and steel combination. Such a system of two magnets generates a stronger field and a further horizon of performance. Want to build a solid fastener? Apply two magnets instead of one magnet and a striker plate. Exercise caution that when bringing together two magnets, the impact force is massive. The levitation is slightly lower than the connection force, but still significant.
*Field value between like poles reaches ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
* Figures show shear force of two matching magnets (friction ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - warnings
MPL 20x3x2 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	3.5 cm
Hearing aid	10 Gs (1.0 mT)	3.0 cm
Mechanical watch	20 Gs (2.0 mT)	2.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	2.0 cm
Remote	50 Gs (5.0 mT)	1.5 cm
Payment card	400 Gs (40.0 mT)	0.5 cm
HDD hard drive	600 Gs (60.0 mT)	0.5 cm

Extremely neodym field is a serious hazard to IT equipment as well as medical implants. These NdFeB products produce a flux that disrupts operation of digital equipment. Be aware: the unseen radiation acts through matter and housings. Increased vigilance must be taken by people with cochlear implants and insulin pumps. Influence will be felt by: automatic timepieces, car keys, speakers, and displays. Avoid contact with magnetic cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (cracking risk) - collision effects
MPL 20x3x2 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	24.68 km/h (6.86 m/s)	0.02 J
30 mm	24.71 km/h (6.86 m/s)	0.02 J
50 mm	24.70 km/h (6.86 m/s)	0.02 J
100 mm	24.71 km/h (6.86 m/s)	0.02 J

Magnetic elements are very brittle – a violent impact against metal causes immediate chipping. Control the attraction moment – a magnet released freely turns into a projectile. Impact energy can trigger coating fragments or dangerous crushing to fingers. Always hold the magnet during mounting so it doesn't hit violently against the steel surface. A collision at high speed almost guarantees destruction of the neodymium. Wear safety glasses when playing with powerful specimens.

Table 9: Corrosion resistance
MPL 20x3x2 / N38

Technical parameter	Value / Description
Coating type	[NiCuNi] Nickel
Layer structure	Nickel - Copper - Nickel
Layer thickness	10-20 µm
Salt spray test (SST) ?	24 h
Recommended environment	Indoors only (dry)

The following table defines the conditions under which this product can be safely used. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (P_c)
MPL 20x3x2 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 748 Mx	17.5 µWb
P_c Coefficient	0.32	Low (Flat)

Total magnetic flux emitted by the magnet pole. Key data for generator designers and motors. P_c value determines the working geometry.

Table 11: Underwater work (magnet fishing)
MPL 20x3x2 / N38

Environment	Effective steel pull	Effect
Air (land)	2.33 kg	Standard
Water (riverbed)	2.67 kg (+0.34 kg buoyancy gain)	+14.5%

Rust risk: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

The magnetic field penetrates through water without any losses. However, remember the water resistance when pulling the rope quickly.

1. Shear force

*Warning: On a vertical surface, the magnet holds just ~20% of its max power.

2. Efficiency vs thickness

*Thin steel (e.g. 0.5mm PC case) severely weakens the holding force.

3. Thermal stability

*For standard magnets, the safety limit is 80°C.

4. Demagnetization curve and operating point (B-H)

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.32

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical and environmental data

Chemical composition

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

Environmental data

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 020130-2026

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MPL 11x11x1 / N38 - lamellar magnet

0.873 zł brutto / pcs

This product is an extremely strong plate magnet made of NdFeB material, which, with dimensions of 20x3x2 mm and a weight of 0.9 g, guarantees premium class connection. As a block magnet with high power (approx. 2.33 kg), this product is available immediately from our warehouse in Poland. Furthermore, its Ni-Cu-Ni coating protects it against corrosion in standard operating conditions, giving it an aesthetic appearance.

Separating block magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. To separate the MPL 20x3x2 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend extreme caution, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.

They constitute a key element in the production of wind generators and material handling systems. Thanks to the flat surface and high force (approx. 2.33 kg), they are ideal as closers in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

For mounting flat magnets MPL 20x3x2 / N38, it is best to use two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. Remember to clean and degrease the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.

The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. In practice, this means that this magnet has the greatest attraction force on its main planes (20x3 mm), which is ideal for flat mounting. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.

This model is characterized by dimensions 20x3x2 mm, which, at a weight of 0.9 g, makes it an element with high energy density. The key parameter here is the lifting capacity amounting to approximately 2.33 kg (force ~22.90 N), which, with such a compact shape, proves the high grade of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Advantages

Besides their remarkable field intensity, neodymium magnets offer the following advantages:

They have stable power, and over nearly 10 years their attraction force decreases symbolically – ~1% (in testing),
Neodymium magnets are extremely resistant to magnetic field loss caused by external field sources,
In other words, due to the glossy surface of silver, the element looks attractive,
Magnetic induction on the top side of the magnet is impressive,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
Thanks to modularity in forming and the ability to modify to complex applications,
Universal use in high-tech industry – they serve a role in mass storage devices, drive modules, diagnostic systems, also modern systems.
Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Limitations

What to avoid - cons of neodymium magnets and ways of using them

Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a strong case, which not only secures them against impacts but also increases their durability
NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
Magnets exposed to a humid environment can rust. Therefore during using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
Limited ability of producing nuts in the magnet and complex shapes - recommended is casing - magnet mounting.
Possible danger resulting from small fragments of magnets are risky, in case of ingestion, which becomes key in the aspect of protecting the youngest. It is also worth noting that tiny parts of these devices can be problematic in diagnostics medical when they are in the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Detachment force of the magnet in optimal conditions – what affects it?

The load parameter shown represents the limit force, obtained under laboratory conditions, meaning:

using a sheet made of low-carbon steel, serving as a ideal flux conductor
whose transverse dimension reaches at least 10 mm
with a plane free of scratches
without any clearance between the magnet and steel
under perpendicular application of breakaway force (90-degree angle)
at ambient temperature room level

Determinants of lifting force in real conditions

It is worth knowing that the application force may be lower influenced by the following factors, in order of importance:

Gap between magnet and steel – every millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Force direction – note that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the nominal value.
Element thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
Chemical composition of the base – mild steel gives the best results. Higher carbon content lower magnetic properties and lifting capacity.
Surface condition – smooth surfaces guarantee perfect abutment, which improves field saturation. Uneven metal weaken the grip.
Heat – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and at low temperatures gain strength (up to a certain limit).

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under parallel forces the holding force is lower. Moreover, even a small distance between the magnet and the plate lowers the load capacity.

H&S for magnets

Material brittleness

Beware of splinters. Magnets can explode upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.

Keep away from electronics

Navigation devices and mobile phones are extremely sensitive to magnetism. Close proximity with a powerful NdFeB magnet can permanently damage the internal compass in your phone.

Power loss in heat

Standard neodymium magnets (grade N) lose power when the temperature goes above 80°C. The loss of strength is permanent.

Fire warning

Powder created during machining of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.

Avoid contact if allergic

Nickel alert: The nickel-copper-nickel coating consists of nickel. If skin irritation appears, immediately stop handling magnets and use protective gear.

Bone fractures

Risk of injury: The pulling power is so immense that it can cause hematomas, pinching, and even bone fractures. Protective gloves are recommended.

Choking Hazard

Only for adults. Small elements can be swallowed, leading to severe trauma. Keep away from children and animals.

Caution required

Handle with care. Rare earth magnets attract from a distance and connect with huge force, often quicker than you can move away.

Data carriers

Equipment safety: Strong magnets can ruin data carriers and delicate electronics (heart implants, hearing aids, mechanical watches).

Danger to pacemakers

Health Alert: Neodymium magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.

Security! Need more info? Check our post: Why are neodymium magnets dangerous?

MPL 20x3x2 / N38 - lamellar magnet

Technical details - MPL 20x3x2 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the magnet - report

Table 1: Static force (force vs distance) - interaction chart MPL 20x3x2 / N38

Table 2: Slippage hold (wall) MPL 20x3x2 / N38

Table 3: Wall mounting (sliding) - vertical pull MPL 20x3x2 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MPL 20x3x2 / N38

Table 5: Thermal resistance (stability) - power drop MPL 20x3x2 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision MPL 20x3x2 / N38

Table 7: Protective zones (implants) - warnings MPL 20x3x2 / N38

Table 8: Collisions (cracking risk) - collision effects MPL 20x3x2 / N38

Table 9: Corrosion resistance MPL 20x3x2 / N38

Table 10: Electrical data (Pc) MPL 20x3x2 / N38

Table 11: Underwater work (magnet fishing) MPL 20x3x2 / N38

1. Shear force

2. Efficiency vs thickness

3. Thermal stability

4. Demagnetization curve and operating point (B-H)

Chemical composition

Environmental data

Magnet pull force

Magnetic Field

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MPL 11x11x1 / N38 - lamellar magnet

Strengths and weaknesses of Nd2Fe14B magnets.

Advantages

Limitations

Pull force analysis

Detachment force of the magnet in optimal conditions – what affects it?

Determinants of lifting force in real conditions

H&S for magnets

Material brittleness

Keep away from electronics

Power loss in heat

Fire warning

Avoid contact if allergic

Bone fractures

Choking Hazard

Caution required

Data carriers

Danger to pacemakers

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - interaction chart
MPL 20x3x2 / N38

Table 2: Slippage hold (wall)
MPL 20x3x2 / N38

Table 3: Wall mounting (sliding) - vertical pull
MPL 20x3x2 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MPL 20x3x2 / N38

Table 5: Thermal resistance (stability) - power drop
MPL 20x3x2 / N38

Table 6: Magnet-Magnet interaction (attraction) - field collision
MPL 20x3x2 / N38

Table 7: Protective zones (implants) - warnings
MPL 20x3x2 / N38

Table 8: Collisions (cracking risk) - collision effects
MPL 20x3x2 / N38

Table 9: Corrosion resistance
MPL 20x3x2 / N38

Table 10: Electrical data (P_c)
MPL 20x3x2 / N38

Table 11: Underwater work (magnet fishing)
MPL 20x3x2 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.